I have a noma programmable thermostat 52-2558-8 & Lennox furnacec33-25b-2-3 I am running the fan on "on" which means it should not turn off - but it does turn off and then start again after a few minutes - I disabled the cycling and it still turns off and restarts - I call a lenox tech and he...

The sreen to my noma thermostat is not working. Suggestions?

Hi, I have a NOMA Programmable 7-Day Thermostat, but today it seems to have gone strange. I had it on the Cool and heat started coming out of the vents. I thought the air conditioning was broken, so I turned the thermostat off, but a little while later the vent came on with hot air again? How...

I bought a programmable thermostat I misplaced my manual. The fan does not want to turn off and when the heat comes on I have a display that shows a sign of fire and one that shows a music note what does it mean

I think this may be a typical problem with converting to a Noma programmable thermostat. I currently have a Sears model , 4 wire and a black wire (jumper?) going from RC to 4. There is also a disabled black wire coming from the wall but not connected to anything. Do I eliminate the black...